45132230321 has 4 divisors (see below), whose sum is σ = 45257947200. Its totient is φ = 45006513444.

The previous prime is 45132230281. The next prime is 45132230347. The reversal of 45132230321 is 12303223154.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 45132230321 - 2¹⁸ = 45131968177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45132250321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62857901 + ... + 62858618.

It is an arithmetic number, because the mean of its divisors is an integer number (11314486800).

Almost surely, 2^45132230321 is an apocalyptic number.

It is an amenable number.

45132230321 is a deficient number, since it is larger than the sum of its proper divisors (125716879).

45132230321 is a wasteful number, since it uses less digits than its factorization.

45132230321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125716878.

The product of its (nonzero) digits is 4320, while the sum is 26.

Adding to 45132230321 its reverse (12303223154), we get a palindrome (57435453475).

The spelling of 45132230321 in words is "forty-five billion, one hundred thirty-two million, two hundred thirty thousand, three hundred twenty-one".